18808340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{22937}}^1$

素因数の和:22987

約数の個数: 24

約数和(自身を含む): 40462632

約数和(自身を除く): 21654292

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 22937, 45874, 91748, 114685, 229370, 458740, 940417, 1880834, 3761668, 4702085, 9404170, 18808340]

約数ペア:

[(1, 18808340), (2, 9404170), (4, 4702085), (5, 3761668), (10, 1880834), (20, 940417), (41, 458740), (82, 229370), (164, 114685), (205, 91748), (410, 45874), (820, 22937)]